There are no Dams downstream. The Feather empties to the Sacramento River. There are a number a weirs on the Sacramento that have been opened to the Bypass (land designated and designed to flood, Farm land, Rice Paddies) to absorb additional flow that we have experienced in the last month or so. IF and a big IF the spillway were to fail as the expected last night I do not think the Sacramento River system would be able to absorb the flow and would be catastrophic downstream in the Sacramento Valley.
Jason Wilson Remotely Located Providing High Speed Internet to out of the way places. 530-651-1736 530-748-9608 Cell www.remotelylocated.com On Mon, Feb 13, 2017 at 11:28 AM, That One Guy /sarcasm < thatoneguyst...@gmail.com> wrote: > are they opening dams downstream? > > they really could truck in a bunch of 4 foot tile to siphon over the banks > and direct the flow past the work areas, close the dam gates and initiate > the repairs. I dont think I would want to be working the boats placing the > tile topside though > > On Mon, Feb 13, 2017 at 1:20 PM, Robert Andrews <i...@avantwireless.com> > wrote: > >> Putting plates into a waterflow of that volume will pretty much be >> certain to rip out of the concrete or create erosion of the concrete around >> the attachment points. Cavitation is a bitch... Right now they can't >> stop the flow. Also pretty much most of the spillway below the hole is >> gone, so there isn't a lot to attach it to. The turbines are shut down >> right now because the erosion has created a dam in the stream that has >> raised the water levels upstream to the point they cannot operate the >> turbines. The turbines were maxed out at 15K cfs up to that point. >> Yeah, I have been pretty much obsessing over this... My inlaws were stuck >> going nowhere in Yuba city last night for 4 hours in gridlock ( at one >> point not moving for 2 hours. ) before deciding it was safer at the house >> on the second floor... >> >> >> >> On 02/13/2017 10:36 AM, Chuck McCown wrote: >> >>> Easy to armchair quarterback but I would think they could bolt 1 inch >>> plates over the hole in the main spillway, put some I beam piles under >>> the plates and open it back up. At least until they take some inches >>> off the reservoir. I wonder if there is a way they can set the angle on >>> the turbines to waste more water there too. >>> >>> -----Original Message----- From: Robert Andrews >>> Sent: Monday, February 13, 2017 11:28 AM >>> To: af@afmug.com >>> Subject: Re: [AFMUG] OT - Oroville dam >>> >>> As of this morning they are saying the regular spillway is supporting >>> the 100K cfs without further damage. If that it true, then there is >>> the ability to deal with what's happening over the next couple of weeks, >>> which looks like 4-5 sequential storms. We got a 4-5 day break in >>> weather this week but if it goes back to last months pattern we are in >>> serious trouble throughout the west. That spillway needs to do 100K cfs >>> for weeks to keep pressure off the hillside below the emergency >>> spillway. Californa and the Feds were sued over in 2005 to put >>> concrete down on that hillside by the Sierra Club. The worse case >>> situation is that the lake goes over the emergency spillway, it erodes >>> below, the spillway fails and the hill below what was the spillway just >>> keeps going away. Moving water, and it would be a lot, would grand >>> canyon the hill... It would be enough water to destroy most of the >>> feather river and Sacramento levee system below the dam.. That would >>> be really really bad... ( Inlaws in Yuba city )... >>> >>> On 02/13/2017 08:47 AM, Jason Wilson wrote: >>> >>>> 100,000cfs is correct. That spillway will support 250,000cfs, but the >>>> Feather River channel will only support about 216,000cfs. It has been >>>> 10 years since the Channel has been stressed to this point, last time >>>> there were levee breaches. Their hope is to drawdown the reservoir 50 >>>> feet below the rim to do a couple things, one is to take pressure off of >>>> the presumed damaged emergency spillway. The other is to make room for >>>> precip that is coming into california towards the end of the week. Of >>>> course they cannot do any repairs to the facility until after the rainy >>>> season is over, and the snowmelt had finished. >>>> >>>> >>>> >>>> Jason Wilson >>>> Remotely Located >>>> Providing High Speed Internet to out of the way places. >>>> 530-651-1736 >>>> 530-748-9608 Cell >>>> www.remotelylocated.com <http://www.remotelylocated.com> >>>> >>>> On Mon, Feb 13, 2017 at 8:31 AM, Bill Prince <part15...@gmail.com >>>> <mailto:part15...@gmail.com>> wrote: >>>> >>>> I heard a reporter saying that the water going over that spillway >>>> was doing 100,000 cubic feet per second. I have a really hard time >>>> visualizing that amount of water. Could also have been a mis-quote >>>> by the reporter... >>>> >>>> >>>> bp >>>> <part15sbs{at}gmail{dot}com> >>>> >>>> On 2/13/2017 8:11 AM, Ken Hohhof wrote: >>>> >>>>> >>>>> So the �good news� is they�re going to drop bags of rocks >>>>> from helicopters?____ >>>>> >>>>> __�__ >>>>> >>>>> I hope my good news never involves helicopters dropping rocks.____ >>>>> >>>>> >>>> >>>> >>> > > > -- > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. >
